Using this as minimum requirements for software, very few can be called Best or Better. As you can see though, the only free software in this list is from Microsoft, and it's in the Average section, which could be called the Average/Bad section. 2 obvious "rip-offs" exist, quote Sophos & Webroot. Sophos is mostly intended for business use though, thus why such a small lincense costs so much. Kaspersky really took the charge with this one though, it's worth that extra $5 if one cares to invest. If one is looking for a deal, G Data has you covered there. And now, if you're like me, and perfer free, you may have noticed already that many of the above offer free versions. Use this as a baseline for what they can really do.